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SSHv2 is likewise trivially probable though ("nc $HOST 22" replies with "SSH-2.0-whatever"!), and that never hurt it. If you want to hide your services from att

by ajross 3y ago

SSHv2 is likewise trivially probable though ("nc $HOST 22" replies with "SSH-2.0-whatever"!), and that never hurt it. If you want to hide your services from attackers, there are many tools for that. I don't see why it needs to be part of the application protocol.